Helmand, Afghanistan
© Craig Wilson
Buena Tierra Mine, Francisco Portillo, West Camp, Santa Eulalia Mining District, Aquiles Serdán Municipality, Chihuahua, Mexico
Shortwave UV fluorescence.
Maria Alm am Steinernen Meer, Zell am See District, Salzburg, Austria
Radiating, acicular aragonite crystals shown fluorescing under SW UV light.
© 2022 Harold Moritz